﻿using UITTimetable.Data;

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Windows.UI.Popups;
using Windows.UI.ApplicationSettings;

// The Grouped Items Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234231

namespace UITTimetable {

    /// <summary>
    /// A page that displays a grouped collection of items.
    /// </summary>
    public sealed partial class DetailTKBGroups : UITTimetable.Common.LayoutAwarePage {
        public DetailTKBGroups() {
            this.InitializeComponent();
        }

        void GroupedItemsPage_CommandsRequested(SettingsPane sender, SettingsPaneCommandsRequestedEventArgs args) {
            TimetableDataSource.AddSettingsCommands(args);
        }

        private String id = String.Empty;

        /// <summary>
        /// Populates the page with content passed during navigation.  Any saved state is also
        /// provided when recreating a page from a prior session.
        /// </summary>
        /// <param name="navigationParameter">The parameter value passed to
        /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested.
        /// </param>
        /// <param name="pageState">A dictionary of state preserved by this page during an earlier
        /// session.  This will be null the first time a page is visited.</param>
        protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState) {
            // TODO: Create an appropriate data model for your problem domain to replace the sample data

            id = (String)navigationParameter;

            if ((navigationParameter as String).IndexOf("TKB_CHUNG") >= 0) {
                var sampleDataGroups = (TimetableDataSource.GetGroup_Design("TKB") as TKBDataGroup).Items.Where(t => t.UniqueId.Equals((String)navigationParameter)).ToList<CommonDataGroup>();
                // Add utility group
                var utility = new CommonDataGroup("UTILITY" + Guid.NewGuid(), "action", "view the timetable", String.Empty);
                utility.Items.Add(new TimetableDataItem() {
                    UniqueId = "U_DAY",
                    Title = "view by day",
                    ShortTitle = "timetable in days",
                    Icon = "\uE169"
                });              

                utility.Items.Add(new TimetableDataItem() {
                    UniqueId = "U_ROOM",
                    Title = "view by room",
                    ShortTitle = "timetable by rooms",
                    Icon = "\uE169"
                });

                //utility.Items.Add(new TimetableDataItem() {
                //    UniqueId = "U_TEACHER",
                //    Title = "view by lecturer",
                //    ShortTitle = "timetable by lecturers",
                //    Icon = "\uE169"
                //});

                utility.Items.Add(new TimetableDataItem() {
                    UniqueId = "U_SAVE",
                    Title = "cache to computer",
                    ShortTitle = "for offline viewing",
                    Icon = "\uE105"
                });

                sampleDataGroups.Add(utility);

                this.DefaultViewModel["Groups"] = sampleDataGroups;
                this.DefaultViewModel["ShortTitle"] = (sampleDataGroups.ElementAt(0) as TimetableDataGroup).ShortTitle;
                SettingsPane.GetForCurrentView().CommandsRequested += GroupedItemsPage_CommandsRequested;

            }
            else {
                var sampleDataGroups = (TimetableDataSource.GetGroup_Design("TKB_SAVED") as TKBDataGroup).Items.Where(t => t.UniqueId.Equals((String)navigationParameter)).ToList<CommonDataGroup>();
                // Add utility group
                var utility = new CommonDataGroup("UTILITY" + Guid.NewGuid(), "action", "view the timetable", String.Empty);
                utility.Items.Add(new TimetableDataItem() {
                    UniqueId = "U_DAY",
                    Title = "view by day",
                    ShortTitle = "timetable in days",
                    Icon = "\uE169"
                });               

                utility.Items.Add(new TimetableDataItem() {
                    UniqueId = "U_ROOM",
                    Title = "view by room",
                    ShortTitle = "timetable by rooms",
                    Icon = "\uE169"
                });

                //utility.Items.Add(new TimetableDataItem() {
                //    UniqueId = "U_TEACHER",
                //    Title = "view by lecturer",
                //    ShortTitle = "timetable by lecturers",
                //    Icon = "\uE169"
                //});

                sampleDataGroups.Add(utility);

                this.DefaultViewModel["Groups"] = sampleDataGroups;
                this.DefaultViewModel["ShortTitle"] = (sampleDataGroups.ElementAt(0) as TimetableDataGroup).ShortTitle;

            }

        }

        /// <summary>
        /// Invoked when a group header is clicked.
        /// </summary>
        /// <param name="sender">The Button used as a group header for the selected group.</param>
        /// <param name="e">Event data that describes how the click was initiated.</param>
        void Header_Click(object sender, RoutedEventArgs e) {
            // Determine what group the Button instance represents
            //var group = (sender as FrameworkElement).DataContext;

            // Navigate to the appropriate destination page, configuring the new page
            // by passing required information as a navigation parameter
            //this.Frame.Navigate(typeof(GroupDetailPage), ((CommonDataGroup)group).UniqueId);
        }

        /// <summary>
        /// Invoked when an item within a group is clicked.
        /// </summary>
        /// <param name="sender">The GridView (or ListView when the application is snapped)
        /// displaying the item clicked.</param>
        /// <param name="e">Event data that describes the item clicked.</param>
        private async void ItemView_ItemClick(object sender, ItemClickEventArgs e) {
            // Navigate to the appropriate destination page, configuring the new page
            // by passing required information as a navigation parameter
            var itemId = ((TimetableDataItem)e.ClickedItem).UniqueId;
            switch (itemId) {
                case "U_SAVE":
                    var md_sync = new MessageDialog("are you sure?");
                    md_sync.Commands.Add(new UICommand("yes", async (UICommandInvokedHandler) => {
                        await TimetableDataSource.SaveTimetable(id);
                    }));

                    md_sync.Commands.Add(new UICommand("no", (UICommandInvokedHandler) => {

                    }));

                    await md_sync.ShowAsync();
                    break;
                case "U_DAY":
                    var dic_day = new Dictionary<String, String>(){
                        {"item_id", "U_DAY"},
                        {"timetable_id", id}
                    };
                    this.Frame.Navigate(typeof(ViewBy), dic_day);
                    break;               
                case "U_ROOM":
                    var dic_room = new Dictionary<String, String>(){
                        {"item_id", "U_ROOM"},
                        {"timetable_id", id}
                    };
                    this.Frame.Navigate(typeof(ViewBy), dic_room);
                    break;
                //case "U_TEACHER":
                //    break;

                default:
                    // Get item in list
                    var item = ((this.DefaultViewModel["Groups"] as List<CommonDataGroup>).Where(t => t.UniqueId.Equals(id)).ElementAt(0) as TimetableDataGroup).Items.Where(s => s.UniqueId.Equals(itemId)).ElementAt(0) as TimetableSubjectDataItem;

                    var detail = item.TongHop;

                    detail += "\n" + "Credit: " + item.SoTinChi + "\n" + "Lecturer: " + item.GiangVien + "\n" + "Note: " + item.GhiChu;

                    var md_detail = new MessageDialog(detail);
                    md_detail.Commands.Add(new UICommand("ok", (UICommandInvokedHandler) => {
                    }));

                    await md_detail.ShowAsync();

                    break;

            }
        }
    }
}
